Question
The coercively of a bar magnet is $100 \mathrm{~A} / \mathrm{m}$. It is to be diamagnetism by placing it inside a solenoid of length $100 \mathrm{~cm}$ and number of turns 50 . The current flowing through the solenoid will be(a) $4 \mathrm{~A}$(b) $2 \mathrm{~A}$(c) $1 \mathrm{~A}$(d) Zero
Step 1
We are given the coercivity of the bar magnet, which is the amount of magnetic field required to reduce its magnetization to zero. In this case, it is $100 \mathrm{~A} / \mathrm{m}$. Show more…
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